"For there to be betrayal, there would have to have been trust"

Bella is pretty content with her life as a vampire, with her daughter Renesme and of course, her flawless husband Edward by her at all times. What happens when one makes a fatal mistake? Is all lost for Bella and Edward? Can he save her from the grasp of the Volturi in time? I'm bad at these, so basically just read the story! ;3